CN203225257U - Frontal electrode for silicon solar cell - Google Patents
Frontal electrode for silicon solar cell Download PDFInfo
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- CN203225257U CN203225257U CN 201320229398 CN201320229398U CN203225257U CN 203225257 U CN203225257 U CN 203225257U CN 201320229398 CN201320229398 CN 201320229398 CN 201320229398 U CN201320229398 U CN 201320229398U CN 203225257 U CN203225257 U CN 203225257U
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- solar cell
- silicon solar
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Abstract
The utility model discloses a frontal electrode for a silicon solar cell. The frontal electrode comprises silver electrodes printed on a front surface of a P-type silicon substrate. After metallization of the sliver electrodes, copper electrodes are printed on the silver electrodes, and after metallization of the copper electrodes, copper-silver alloy frontal electrodes are formed on the front surface of the P-type silicon substrate. The frontal electrode provided by the utility model is advantageous in that, the copper electrodes are used in substitution of part of the silver electrodes on the frontal electrode, so that the use amount of the silver electrodes on the frontal electrode of the silicon solar cell is reduced, and the production cost of the silicon solar cell is reduced.
Description
Technical field
The utility model relates to a kind of battery, especially relates to a kind of front electrode of silicon solar cell.
Background technology
The appearance of printing and distributing along with 12 planning, the application of photovoltaic product will be widened effectively, in the 3-5 in future, except large-scale grid-connected photovoltaic power station, the photovoltaic generating system that combines with building, low profile photovoltaic system and also will become the emerging power that the domestic photovoltaic generation market demand increases from net photovoltaic system etc., the development of whole photovoltaic industry still can be carried out round the cost that how effectively to reduce photovoltaic system, promoting solar cell and photovoltaic system cost to continue " the par online " on decline and the realization essential meaning effectively, will be key element and the industry theme of photovoltaic industry development; On the other hand, silicon material, assembly and relevant matching component etc. all will face the market pressure of quick price reduction, and this just requires solar photovoltaic generation system constantly to high efficiency, direction develops cheaply.But the cost of the silver electrode that present silicon solar cell is used has accounted for 15% of whole silicon solar cell manufacturing cost, and the cost of silver electrode is than higher, and this just makes the cost of silicon solar cell higher, causes silicon solar cell to widely popularize.
Summary of the invention
Technical problem to be solved in the utility model provides the front electrode of the low silicon solar cell of a kind of production cost.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of front electrode of silicon solar cell, this silicon solar cell comprises P type silicon substrate, this front electrode comprises the silver electrode on the front surface that is printed in described P type silicon substrate, it is characterized in that: be printed with copper electrode in the described silver electrode after metalized, described copper electrode forms the front electrode of Kufil at the front surface of described P type silicon substrate after metalized.
The width of described silver electrode is 10～80 microinch, and the thickness of described silver electrode is 5～20 microinch.
The width of described silver electrode is got 50 microinch, and the thickness of described silver electrode is got 15 microinch.
Described silver electrode is carried out metalized in chain-type sintering furnace, and feeds compressed air in the metalized process.
The width of described copper electrode is 5～75 microinch, and the thickness of described copper electrode is 5～20 microinch.
The width of described copper electrode is got 40 microinch, and the thickness of described copper electrode is got 15 microinch.
Described copper electrode carries out metalized in chain-type sintering furnace, and feeds hydrogen in the metalized process.
Compared with prior art, advantage of the present utility model is: pass through making herbs into wool, diffusion, the back is cleaned, print silver electrode on the front surface of the P type silicon substrate after plated film and printed back electrode process are handled, print copper electrode in the silver electrode surface after the metalized then, again copper electrode is carried out metalized, form the front electrode of Kufil, utilize copper electrode to replace part silver electrode on the front electrode of silicon solar cell, reduce the manufacturing cost of the front electrode of silicon solar cell effectively, thereby reduce the manufacturing cost of silicon solar cell.
Description of drawings
Fig. 1 is the structural representation of the front electrode of silicon solar cell of the present utility model.
Embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
Present embodiment has proposed a kind of front electrode of silicon solar cell, as Fig. 1, comprise P type silica-based 1, being printed with one deck width at the front surface of P type silicon substrate 1 is that 10～80 microinch, thickness are the silver electrode 2 of 5～20 microinch, being printed with one deck width in the silver electrode 2 after metalized is that 5～75 microinch, thickness are the copper electrode 3 of 5～20 microinch, and this copper electrode 3 forms the front electrode of Kufil through the silver electrode 2 after the metalized and after metalized.
In the present embodiment, the metalized of silver electrode 2 is carried out in chain-type sintering furnace, need in the reason process herein to feed compressed air to chain-type sintering furnace, the metalized of copper electrode 3 is also carried out in chain-type sintering furnace, needs in the reason process herein to feed hydrogen to chain-type sintering furnace.
In specific implementation process, the width that is printed on the silver electrode 2 on the front surface of P type silicon substrate 1 is that 50 microinch, thickness are 15 microinch, and the width that is printed on the copper electrode 3 on the silver electrode 2 after the metalized is that 40 microinch, thickness are 15 microinch.
The preparation process of the front electrode of silicon solar cell of the present utility model is:
1. the front surface printing last layer width of the P type silicon substrate 1 after handling through making herbs into wool, diffusion, back cleaning, plated film and printed back electrode process is that 50 microinch, thickness are the silver electrode 2 of 15 microinch, silk-screen printing technique is adopted in the preparation of this silver electrode 2, its process conditions are: squeegee pressure is 4 kilograms, the silk screen live width is 50 microinch, and wire mesh membrane thickness is 15 microinch.
2. above-mentioned silver electrode 2 and the lip-deep backplate of the back of the body that is printed in P type silicon substrate 1 are carried out metalized, this metalized is carried out in the chain-type sintering furnace of routine, its process conditions are: belt speed is 200 inch per minute clocks, and sintering temperature is 860 ℃, and compressed-air actuated range is 32%.
3. the printing of the silver electrode surface after metalized last layer width is that 40 microinch, thickness are the copper electrode 3 of 15 microinch, form polar stack, silk-screen printing technique is adopted in the preparation of this copper electrode 3, its process conditions are: squeegee pressure is 4 kilograms, the silk screen live width is 40 microinch, and wire mesh membrane thickness is 15 microinch.
In specific implementation process, be printed onto the width of the copper electrode 3 on the silver electrode 2 less than the width of silver electrode 2.
4. copper electrode 3 is carried out metalized, form the front electrode of Kufil, this metalized is carried out in chain-type sintering furnace, and its process conditions are: belt speed is 250 inch per minute clocks, and sintering temperature is 970 ℃, and the range of hydrogen is 25%.
Claims (7)
1. the front electrode of a silicon solar cell, this silicon solar cell comprises P type silicon substrate, this front electrode comprises the silver electrode on the front surface that is printed in described P type silicon substrate, it is characterized in that: be printed with copper electrode in the described silver electrode after metalized, described copper electrode forms the front electrode of Kufil at the front surface of described P type silicon substrate after metalized.
2. the front electrode of a kind of silicon solar cell according to claim 1, it is characterized in that: the width of described silver electrode is 10～80 microinch, the thickness of described silver electrode is 5～20 microinch.
3. the front electrode of a kind of silicon solar cell according to claim 2, it is characterized in that: the width of described silver electrode is got 50 microinch, and the thickness of described silver electrode is got 15 microinch.
4. according to the front electrode of each described a kind of silicon solar cell in the claim 1 to 3, it is characterized in that: described silver electrode is carried out metalized in chain-type sintering furnace, and feeds compressed air in the metalized process.
5. the front electrode of a kind of silicon solar cell according to claim 4, it is characterized in that: the width of described copper electrode is 5～75 microinch, the thickness of described copper electrode is 5～20 microinch.
6. the front electrode of a kind of silicon solar cell according to claim 5, it is characterized in that: the width of described copper electrode is got 40 microinch, and the thickness of described copper electrode is got 15 microinch.
7. the front electrode of a kind of silicon solar cell according to claim 6, it is characterized in that: described copper electrode carries out metalized in chain-type sintering furnace, and feeds hydrogen in the metalized process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229398 CN203225257U (en) | 2013-04-28 | 2013-04-28 | Frontal electrode for silicon solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229398 CN203225257U (en) | 2013-04-28 | 2013-04-28 | Frontal electrode for silicon solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225257U true CN203225257U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229398 Expired - Lifetime CN203225257U (en) | 2013-04-28 | 2013-04-28 | Frontal electrode for silicon solar cell |
Country Status (1)
| Country | Link |
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| CN (1) | CN203225257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258867A (en) * | 2013-04-28 | 2013-08-21 | 宁波日地太阳能电力有限公司 | Front electrode of silicon solar cell and preparation method thereof |
-
2013
- 2013-04-28 CN CN 201320229398 patent/CN203225257U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258867A (en) * | 2013-04-28 | 2013-08-21 | 宁波日地太阳能电力有限公司 | Front electrode of silicon solar cell and preparation method thereof |
| CN103258867B (en) * | 2013-04-28 | 2016-04-13 | 宁波日地太阳能电力有限公司 | Front electrode of a kind of silicon solar cell and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160519 Address after: Kaohsiung streets Beilun District 315803 in Zhejiang province Ningbo City Chen Shan Road No. 27 Building 1 room 01 Patentee after: Ningbo Asahi Solar Power Inc. Address before: Kaohsiung street Beilun District 315803 in Zhejiang province Ningbo City Shao Village No. 28 2-3 Patentee before: NINGBO SUN EARTH SOLAR POWER Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: Kaohsiung streets Beilun District 315803 in Zhejiang province Ningbo City Chen Shan Road No. 9 Building 9, No. 1 Patentee after: NINGBO SUN EARTH EAST SOLAR CO.,LTD. Address before: Kaohsiung streets Beilun District 315803 in Zhejiang province Ningbo City Chen Shan Road No. 27 Building 1 room 01 Patentee before: Ningbo Asahi Solar Power Inc. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315803 No. 1, Building 9, Chen Shan Road, Xiaogang Street, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Dongxu Solar Power Co.,Ltd. Address before: 315803 No. 1, Building 9, Chen Shan Road, Xiaogang Street, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO SUN EARTH EAST SOLAR CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |